I've been in industry for 27 years, 23 of those as a sales person, then moving through the ranks to run sales teams, divisions and regions. I have worked for start ups, I've worked for SME's and I've worked for global enterprises. As you will see above I don't for one moment suggest I know it all, you might want to take that on board, but I've done very well and continue to do very well. I've recruited over 50 sales people and continue to coach and personally mentor several of them as well as being a board advisor to US start up companies who need help building such capabilities.
Again simplistic. Do you think someone selling, for example, a global CRM roll out across 75 locations in 20 countries would be able to do this is a list of benefits, a coffee and some closing techniques?
You really have a lot to learn if you really believe you can instill effective competence in that timeframe and also you assume the general public is ignorant, a cardinal sin for any sales person.